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Luecke, C.A. ; Arbic, B.K. ; Bassette, S.L. ; Richman, J.G. ; Shriver, J.F. ; Alford, M.H. ; Smedstad, O.M. ; Timko, P.G. ; Trossman, D.S. ; Wallcraft, A.J.
Title
The Global Mesoscale Eddy Available Potential Energy Field in Models and Observations
Type
$loc['typeJournal Article']
Year
2017
Publication
Journal of Geophysical Research: Oceans
Abbreviated Journal
J. Geophys. Res. Oceans
Volume
122
Issue
11
Pages
9126-9143
Keywords
eddy available potential energy ; mesoscale eddies ; mixing ; model-data comparison ; ocean energy reservoirs ; Argo
Abstract
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Summary Language
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Series Editor
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Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
2169-9275
ISBN
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Expedition
Conference
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
464
Permanent link to this record
Author
Luecke, C.A. ; Arbic, B.K. ; Bassette, S.L. ; Richman, J.G. ; Shriver, J.F. ; Alford, M.H. ; Smedstad, O.M. ; Timko, P.G. ; Trossman, D.S. ; Wallcraft, A.J.
Title
The Global Mesoscale Eddy Available Potential Energy Field in Models and Observations: GLOBAL LOW-FREQUENCY EDDY APE
Type
$loc['typeJournal Article']
Year
2017
Publication
Journal of Geophysical Research: Oceans
Abbreviated Journal
J. Geophys. Res. Oceans
Volume
122
Issue
11
Pages
9126-9143
Keywords
eddy available potential energy ; mesoscale eddies ; mixing ; model‐ ; data comparison ; ocean energy reservoirs ; Argo
Abstract
Global maps of the mesoscale eddy available potential energy (EAPE) field at a depth of 500 m are created using potential density anomalies in a high‐resolution 1/12.5° global ocean model. Maps made from both a free‐running simulation and a data‐assimilative reanalysis of the HYbrid Coordinate Ocean Model (HYCOM) are compared with maps made by other researchers from density anomalies in Argo profiles. The HYCOM and Argo maps display similar features, especially in the dominance of western boundary currents. The reanalysis maps match the Argo maps more closely, demonstrating the added value of data assimilation. Global averages of the simulation, reanalysis, and Argo EAPE all agree to within about 10%. The model and Argo EAPE fields are compared to EAPE computed from temperature anomalies in a data set of “moored historical observations” (MHO) in conjunction with buoyancy frequencies computed from a global climatology. The MHO data set allows for an estimate of the EAPE in high‐frequency motions that is aliased into the Argo EAPE values. At MHO locations, 15–32% of the EAPE in the Argo estimates is due to aliased motions having periods of 10 days or less. Spatial averages of EAPE in HYCOM, Argo, and MHO data agree to within 50% at MHO locations, with both model estimates lying within error bars observations. Analysis of the EAPE field in an idealized model, in conjunction with published theory, suggests that much of the scatter seen in comparisons of different EAPE estimates is to be expected given the chaotic, unpredictable nature of mesoscale eddies.
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Publisher
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Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
2169-9275
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ rl18 @
Serial
992
Permanent link to this record
Author
MacKinnon, J.A. ; Alford, M.H. ; Ansong, J.K. ; Arbic, B.K. ; Barna, A. ; Briegleb, B.P. ; Bryan, F.O. ; Buijsman, M.C. ; Chassignet, E.P. ; Danabasoglu, G. ; Diggs, S. ; Griffies, S.M. ; Hallberg, R.W. ; Jayne, S.R. ; Jochum, M. ; Klymak, J.M. ; Kunze, E. ; Large, W.G. ; Legg, S. ; Mater, B. ; Melet, A.V. ; Merchant, L.M. ; Musgrave, R. ; Nash, J.D. ; Norton, N.J. ; Pickering, A. ; Pinkel, R. ; Polzin, K. ; Simmons, H.L. ; St. Laurent, L.C. ; Sun, O.M. ; Trossman, D.S. ; Waterhouse, A.F. ; Whalen, C.B. ; Zhao, Z.
Title
Climate Process Team on Internal-Wave Driven Ocean Mixing
Type
$loc['typeJournal Article']
Year
2017
Publication
Bulletin of the American Meteorological Society
Abbreviated Journal
Bull. Amer. Meteor. Soc.
Volume
98
Issue
11
Pages
2429-2454
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Edition
ISSN
0003-0007
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Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
66
Permanent link to this record
Author
Trossman, D.S. ; Arbic, B.K. ; Straub, D.N. ; Richman, J.G. ; Chassignet, E.P. ; Wallcraft, A.J. ; Xu, X.
Title
The Role of Rough Topography in Mediating Impacts of Bottom Drag in Eddying Ocean Circulation Models
Type
$loc['typeJournal Article']
Year
2017
Publication
Journal of Physical Oceanography
Abbreviated Journal
J. Phys. Oceanogr.
Volume
47
Issue
8
Pages
1941-1959
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Abstract
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Summary Language
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Series Editor
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Series Issue
Edition
ISSN
0022-3670
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
230
Permanent link to this record